Seaton Sluice: Royal Hartley Bottleworks shore

Where: UK & Ireland · Europe · approx. 55.08, -1.47 (vicinity only)

Why this spot: Harbour village whose Royal Hartley Bottleworks (1763-1872) peaked at 1.74 million bottles a year; glass waste still seeds the harbour beach

What turns up: dark olive bottle glass, sea-smoothed cullet lumps, kiln brick, later Victorian beach glass

Access: Clean.

Open public beach: surface picking of sea glass is fine, but the harbour walls and village works sites are not for digging

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.